package com.itheima.reggie.common;


import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

import java.sql.SQLIntegrityConstraintViolationException;

/**
 * 全局异常处理
 */


//指定拦截那些类型的控制器
@ControllerAdvice(annotations = {RestController.class, Controller.class})
@ResponseBody  //将返回对象转换成json类型数据 返回给页面
@Slf4j
public class GlobalExceptionHandler {

    /**
     * 异常处理方法
     * @param ex
     * @return
     */

    @ExceptionHandler(SQLIntegrityConstraintViolationException.class)
    public Result<String> exceptionHandler(SQLIntegrityConstraintViolationException ex) {
        log.error(ex.getMessage());
        //如果抛出的异常包含Duplicate entry 就根据" "分割 动态获取用户输出的账号名 拼上字符串后返回
        if (ex.getMessage().contains("Duplicate entry")){
            String[] split = ex.getMessage().split(" ");
            String msg = split[2] + "已存在";
            return  Result.error(msg);
        }
        return Result.error("未知错误");
    }

    @ExceptionHandler(CustomException.class)
    public Result<String> exceptionHandler(CustomException ex){
        //日志记录信息
        log.error(ex.getMessage());

        return Result.error(ex.getMessage());

    }

}
